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Mathematics 20 Online
OpenStudy (anonymous):

Cos(tan^-1(sin(cot^-1 x)))=?

OpenStudy (ash2326):

We have \[\cos(\tan^{-1}(\sin(\cot^{-1} x)))=?\] Inside we have \[\cot^{-1} x\] Tell me what is cot theta in a triangle

OpenStudy (ash2326):

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